Estimate the order of magnitude of the radius of a spherical cosmic particle for which the force of attraction to the Sun is balanced by the force of light pressure from solar radiation. The surface of the particle is considered to be absolutely black; its density is 7.8 • 103 kg/m3. The Sun is considered an absolutely black emitter with a temperature of 6000 K, the mass of the Sun is 1.97•1030 kg, the radius of the Sun is 6.96•105 km. Neglect the diffraction of light by the particle.

Answer. Format gif